Jun 30, 2005 — As the hot weather settles in, air conditioners are being wedged into windows everywhere. The Great Lakes Radio Consortium's Karen Kelly usually tries not to use one. But she finds as the temperatures rise, her concerns for the environment evaporate.  Go to full article

Aug 27, 2004 — The city of Toronto is using the deep, chilly waters of Lake Ontario as "green" air conditioning for some of its skyscrapers. David Sommerstein explains how.  Go to full article

Aug 08, 2002 — Many people are grateful for air conditioning in their offices and homes when temperatures rise, but air conditioning has had a negative effect on much of the Northeast. A new book devoted to the history of air conditioning says artifial cooling is a contributing factor to upstate New York's economic decline during the 20th century. Karen DeWitt reports.  Go to full article